Night Owl has flown away!

Good day...<br> <br> My sister and I have been using a Vodacom Data account for over 4 years. It provides 2Gig of data from 5am till 23:59:59 and another 2Gig from 00.00 till 04:59:59. Now today we noticed that the Night Owl 2Gig wasn't available for this month's allocation. We called Vodacom who told us that if we have been receiving Night owl data, then it was pure luck because our account is only for 12 months and we, at any point, are not eligible for night owl data. <br> <br> This account has never been in arrears with an excellent payment record.<br> <br> Please assist.